Research

Hormonal

Succinate signaling via the SUCNR1 receptor is required for strength gains from resistance training, as blocking this pathway compromises training-induced grip strength improvements despite enhancing endurance capacity.

For strength training, your body uses succinate signaling to build muscle and neural adaptations. You don't need to supplement succinate; just perform progressive resistance training. The paper suggests that if you were to block this specific pathway, you would lose strength gains, so ensure your training is consistent and progressive to naturally stimulate this mechanism.

ModerateSupportsMEDIUM confidence
training-induced gains in grip strength were completely compromised in SUNCR1 KOs. In line with these observations, training resulted in increased neural-specific tubulin staining only in WT mice, while SUNCR1 KOs displayed downregulated fast MyHC isoforms as well as proteins involved in ECM organization
Aurel B. Leuchtmann et al. · Frontiers in Physiology · 2021

Why this rating

Based on mouse knockout models; human relevance is inferred.

Source

The Role of the Skeletal Muscle Secretome in Mediating Endurance and Resistance Training Adaptations

Aurel B. Leuchtmann et al. · Frontiers in Physiology · 2021

DOI 10.3389/fphys.2021.709807

narrative_reviewCited 77×
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DOI resolved against Crossref · corpus check 2026-06-10

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